no message

重庆迈尖科技有限公司

2019-01-30 94217b294ccd75a34787eb04d6e273e99536e45b

 Pods/SDWebImage/SDWebImage/UIImageView+WebCache.m

@@ -7,9 +7,6 @@
 */

#import "UIImageView+WebCache.h"

#if SD_UIKIT || SD_MAC

#import "objc/runtime.h"
#import "UIView+WebCacheOperation.h"
#import "UIView+WebCache.h"
@@ -71,22 +68,30 @@

- (void)sd_setAnimationImagesWithURLs:(nonnull NSArray<NSURL *> *)arrayOfURLs {
    [self sd_cancelCurrentAnimationImagesLoad];
    __weak __typeof(self)wself = self;

    NSMutableArray<id<SDWebImageOperation>> *operationsArray = [[NSMutableArray alloc] init];

    for (NSURL *logoImageURL in arrayOfURLs) {
        id <SDWebImageOperation> operation = [SDWebImageManager.sharedManager loadImageWithURL:logoImageURL options:0 progress:nil completed:^(UIImage *image, NSData *data, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
            if (!wself) return;
    NSPointerArray *operationsArray = [self sd_animationOperationArray];
    
    [arrayOfURLs enumerateObjectsUsingBlock:^(NSURL *logoImageURL, NSUInteger idx, BOOL * _Nonnull stop) {
        __weak __typeof(self) wself = self;
        id <SDWebImageOperation> operation = [[SDWebImageManager sharedManager] loadImageWithURL:logoImageURL options:0 progress:nil completed:^(UIImage *image, NSData *data, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
            __strong typeof(wself) sself = wself;
            if (!sself) return;
            dispatch_main_async_safe(^{
                __strong UIImageView *sself = wself;
                [sself stopAnimating];
                if (sself && image) {
                    NSMutableArray<UIImage *> *currentImages = [[sself animationImages] mutableCopy];
                    if (!currentImages) {
                        currentImages = [[NSMutableArray alloc] init];
                    }
                    [currentImages addObject:image];
                    
                    // We know what index objects should be at when they are returned so
                    // we will put the object at the index, filling any empty indexes
                    // with the image that was returned too "early". These images will
                    // be overwritten. (does not require additional sorting datastructure)
                    while ([currentImages count] < idx) {
                        [currentImages addObject:image];
                    }
                    
                    currentImages[idx] = image;

                    sself.animationImages = currentImages;
                    [sself setNeedsLayout];
@@ -94,17 +99,41 @@
                [sself startAnimating];
            });
        }];
        [operationsArray addObject:operation];
    }
        @synchronized (self) {
            [operationsArray addPointer:(__bridge void *)(operation)];
        }
    }];
}

    [self sd_setImageLoadOperation:[operationsArray copy] forKey:@"UIImageViewAnimationImages"];
static char animationLoadOperationKey;

// element is weak because operation instance is retained by SDWebImageManager's runningOperations property
// we should use lock to keep thread-safe because these method may not be acessed from main queue
- (NSPointerArray *)sd_animationOperationArray {
    @synchronized(self) {
        NSPointerArray *operationsArray = objc_getAssociatedObject(self, &animationLoadOperationKey);
        if (operationsArray) {
            return operationsArray;
        }
        operationsArray = [NSPointerArray weakObjectsPointerArray];
        objc_setAssociatedObject(self, &animationLoadOperationKey, operationsArray, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
        return operationsArray;
    }
}

- (void)sd_cancelCurrentAnimationImagesLoad {
    [self sd_cancelImageLoadOperationWithKey:@"UIImageViewAnimationImages"];
    NSPointerArray *operationsArray = [self sd_animationOperationArray];
    if (operationsArray) {
        @synchronized (self) {
            for (id operation in operationsArray) {
                if ([operation conformsToProtocol:@protocol(SDWebImageOperation)]) {
                    [operation cancel];
                }
            }
            operationsArray.count = 0;
        }
    }
}
#endif

@end

#endif